Can i ever breathe again?

I am a grad student and TA in a math dept, a couple of months ago the dept moved me into this 6ft by 5ft office 3 floors underground with no window(of course). at first i would have to rush out every 60mins for some air, i would find it impossible to live with the persistent electric hum down there. but today i suddenly realized: i earn less than the lowest paid staff, most people even argue that i do not work at all, dont contribute to society which makes me a parasite, i spend approx 16 hrs a day in a 6by5 room and leave with a sense of having stolen from the world at 2am every night, and i sleep on the floor (i refuse to buy old furniture). my overall worth is negative, because people think i am actually cheating society by asking for free tuition. i think i have sunk to the lowest level of existence. the question is: is it possible to ever rise again? or is this my fate.

You're WAY too hard on yourself! It sounds to me like you're just making do with what you have for the moment. Grad school is only a transition to something beyond, hopefully a career in teaching or research or some other thing you like.

I didn't work (outside the college) when I was a grad student, and I never felt bad about it! I was pissed that they didn't pay me MORE for teaching my prof's discussion groups, grading papers and filling in on lectures for over 300 kids! It's not YOU who is a parasite, but, if anyone, the professors, who, once they get tenure, kick back and get paid pretty well for teaching 1-2 courses. Most of 'em try to avoid undergrads completely! YOU make that possible...so congratulate yourself and vow that one day...YOU will get your due!